/**
 *  Copyright (C) 2013  Piotr Szczepański
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package edu.pw.elka.gtsna.interaction_index;

import java.util.Set;

/**
 * @author Piotr Lech Szczepański
 * @author P.Szczepanski@ii.pw.edu.pl 
 *
 */
public interface InteractionIndexComputable {
	/**
	 * `
	 * @param a
	 * @param b
	 * @return the interaction value between two agents
	 */
	public double interaction(int a, int b);
	
	/**
	 * 
	 * @param coalition
	 * @param b
	 * @return the interaction  between coalition C and agent a
	 */
	public double interaction(Set<Integer> C, int a);
	public double interaction(int a, Set<Integer> C);
	
	/**
	 * 
	 * @param coalition
	 * @param b
	 * @return the interaction  between two coalitions 
	 */
	public double interaction(Set<Integer> C1, Set<Integer> C2);
}
